President Uhuru Kenyatta of Kenya has urged an end to Africa's illegal ivory trade, saying it means death for elephants and death for tourism. He is hosting a summit of African leaders, business people and scientists in Nanyuki, central Kenya,

A rise in the demand for ivory has led to poachers illegally killing thousands of elephants every year - and despite the use of GPS tracking systems, rangers are finding it increasingly difficult to protect the animals.

Oblivious to the cold - and predators - as night falls, an orphaned elephant calf holds a vigil by the body of his dead mother. The five-month-old lovingly laid his trunk on her as the emotional drama was played out in Samburu, northern Kenya. (Video)